ae.

aetatis; ae., aet.; aetatis suae Aged; of age; in the year of his (or her) age. These terms are shortened versions of the more proper anno aetatis suae, 'In the year of his/her age.'. Frequently found abbreviated on old tombstones, it appears variously as A.A.S., A.S., and most commonly aet; for example, if someone died in his 41st year, the marke...
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